Mapping Longitudinal and Transverse Displacements of a Dam Crest Based on the Synergy of High-Precision Remote Sensing

Table 3

Differences of distances (in meters) measured between the total station and the scanner.

Measured section	Total station	3D digital model	Absolute differences
Pier 10–11	2.945	2.9466	0.00160
Pier 9	1.424	1.4247	0.00070
Pier 2–3	2.958	2.9596	0.00160
Pier 7–8	2.896	2.8944	0.00160
WT 64–71	1.4978	1.4956	0.00220
Mean	—	—	0.00154
Standard deviation	—	—	0.00054